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Finding the Fourth Proportional to 1,193.17, 1,789.91 and 500.31

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Solution

The fourth proportional to 1,193.17, 1,789.91 and 500.31 is: 750.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.17 : 1,789.91 = 500.31 : x
  2. Step 2: Convert to fraction form
    1,193.17/1,789.91 = 500.31/x
  3. Step 3: Cross multiply
    1,193.17x = 1,789.91 × 500.31
  4. Step 4: Simplify right side
    1,193.17x = 895,509.87
  5. Step 5: Solve for x
    x = 895,509.87/1,193.17
  6. Step 6: Final answer
    x = 750.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.